US8172315B2 - Device for a reclining chair - Google Patents

Device for a reclining chair Download PDF

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Publication number
US8172315B2
US8172315B2 US12/682,752 US68275208A US8172315B2 US 8172315 B2 US8172315 B2 US 8172315B2 US 68275208 A US68275208 A US 68275208A US 8172315 B2 US8172315 B2 US 8172315B2
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United States
Prior art keywords
back support
headrest
support
frictional
reclining chair
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US12/682,752
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English (en)
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US20100213743A1 (en
Inventor
Rune Jonsen
Lars Inge Jakobsen
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Ekornes AS
Mobel Design AS
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Mobel Design AS
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Assigned to MOBEL DESIGN AS reassignment MOBEL DESIGN AS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JONSEN, RUNE, JAKOBSEN, LARS INGE
Publication of US20100213743A1 publication Critical patent/US20100213743A1/en
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Assigned to IMG GROUP AS reassignment IMG GROUP AS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MØBELDESIGN AS
Assigned to Ekornes AS reassignment Ekornes AS MERGER (SEE DOCUMENT FOR DETAILS). Assignors: IMG GROUP AS
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/036—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs

Definitions

  • the present invention relates to a device for a reclining chair, according to the preamble of claim 1 .
  • the lower back support is fixed for upright sitting position and will thus often be too dominating and unpleasant when the reclining chair is in its reclining position. This means that the lower back support will be more and more noticeable and unpleasant as the back section is reclined.
  • Another solution is that one make use of the upholstery which will give sufficient support at an upright position and that the upholstery will be stretched to reduce the support when in declined position.
  • the use of extra support in the upholstery often give a limited effect with regards to what type of upholstery can be used and what of fabric is used to protect it.
  • Another disadvantage is the appearance of the reclining chair which, with the solution described above, often give a wrinkled surface at the lower back section in upright position.
  • the mechanisms are often large in size and thus give limitations in the shape and choice of fabric for the upholstery on the back section.
  • FIG. 1 shows the framework of a reclining chair in which the invention is used
  • FIG. 2 shows a detail picture of the joint between the upper back and the neck support
  • FIG. 3 shows a detail picture of the frictional joint
  • FIG. 4 shows details of the frictional arm
  • FIG. 5 shows the reclining chair reclined with the neck support angled maximum forward
  • FIG. 6 shows a reclining chair reclined with the neck support pushed maximum backwards.
  • the invention is in this application symmetrical and thus the same parts will be found on both sides of the reclining chair, and thus the FIGS. 3 , 4 and 5 show details of only one side.
  • a reclining chair 1 comprise of a headrest 2 , a back support 3 where the headrest 2 is connected to the back support 3 with at least one rotational joint 7 , 8 , a seat part 4 which is connected to the back support 3 through at least one joint 9 , 10 , a frame part 5 and a support part 6 .
  • the frame part 5 supports “the chair part” through a horizontal axis of rotation A-A which passes through the back support 3 and at least one guide 15 which is rotatably fixed to the foremost part of the seat part 4 .
  • the invention can be mounted in a reclining chair or a functional sofa, as shown on the figures, and it functions by letting the reclining chair 1 create a shape along the body and that one in addition can adjust the headrest 2 individually.
  • the reclining chair 1 which is shown in the figures is of the type where the back support 3 rotates about a horizontal axel A-A which often is placed in the height of the elbow when the user is sitting upright, but can also be used on other types of reclining chairs/functional sofa, hereafter called reclining chairs.
  • the invention is narrow and simple along upper part of the back support, while the more robust functional part is placed by the axes of rotation A-A in such a way that the upholstery for the back support can be made thinner if so wished, without loosing functionality.
  • the invention comprise at least one rotational joint 7 , 8 between the headrest 2 and the back support 3 , at least one frictional part 13 , 14 which is placed at the axis of rotation A-A to the back support 3 , and at least one strut 11 , 12 which connects the rotational joint 7 , 8 with the frictional part 13 , 14 .
  • the frictional part 13 , 14 comprise a frictional arm 16 which is rotatably fixed in a point 30 and between at least a frictional washer 17 , 18 and the frame 5 by the use of at tightening device 30 with a washer, plate, or similar 20 .
  • the frictional arm rotates about the axes A-A which goes through the point 30 .
  • a tightening device 19 is fixed to the frictional part a bit away from the rotating axis A-A.
  • the invention comprise at least one arm 24 , 25 which is none rotatably fixed to the frame part 5 , where the arm 24 , 25 extends from the axis of rotation A-A downwards toward the seat part 4 when the reclining chair is in upright position. Between the arms 24 , 25 it is positioned a spring/band/strap or similar 28 , which is rotatably fixed 26 , 27 to the lower end of the arms 24 , 25 in such a way that it can rotate around its own horizontal axis of rotation and which give lower back support.
  • the at least one rotatable joint 7 , 8 comprise a flat triangular shaped plate fixed to the headrest 2 , a nearly rectangular plate fixed to the back support 3 and a fixing device which allow these two plates to rotate.
  • the flat triangular shaped plate is supplied with two extensions, in the direction of the plate, where each provides a support surface 21 , 22 .
  • the support surfaces are placed on a common arc in the same plane as the triangular shaped plate and where the fixing device for the plate is the centre for the arc.
  • These support surfaces 21 , 22 comes in contact with at least one stop 23 which is placed inbetween the support surfaces 21 , 22 and fixed to the back support 3 adjacent to the rotational joint 7 , 8 .
  • the stop 23 together with the support surfaces 21 , 22 ensures that the headrest 2 only can rotate within a predetermined angle relative to the back support 3 .
  • the headrest 2 In upright position the headrest 2 will preferably have an almost vertical position relative to a horizontal line which can rotate around the axis of rotation A-A.
  • the friction in the friction part 13 , 14 will be sufficient to prevent the strut 11 , 12 which leads to the rotational joint 7 , 8 , to move and thus will maintain the angle of the headrest 2 from the upright position so that the headrest 2 will rotate in the rotational joint 7 , 8 while the back support 3 is reclining.
  • the headrest 2 will be pushed forward towards the back of the head of the user relatively, as the back support 3 is reclining.
  • the user can adjust headrest 2 all the time manually more backwards, but not necessarily forward.
  • the tightening device 19 can e.g. be a screw, bolt, a pin, sleeve, etc.
  • the headrest 2 From this position and further reclining, the headrest 2 will be able to move both backwards and limited forward due to that the stop function in the frictional part 13 , 14 , until maximum movement for headrest 2 is achieved due to the stop function in the frictional part 13 , 14 do not get in contact and the rotation of the headrest is only limited by the contact surfaces 21 , 22 coming in contact with the stop 23 .
  • the lower back support 28 is in this example a Nozag spring.
  • the length of the arms 24 , 25 is partly given by “the placement” of the lower back relative to the seat part 4 for a user in a reclining chair, to give optimal lower back support.
  • FIGS. 5 and 6 show how the seat part 4 is elevated upwards a distance h from the frame part 5 when the back support 3 is reclined, compared to the position of the seat part 4 in FIG. 1 .
  • the headrest 2 is in the position the headrest 2 will take if the user do not provide pressure towards the headrest 2 , but only provides pressure towards the back support 3 .
  • the headrest 2 will then have a maximum displacement forward and the support surface 21 in the rotational joint 7 , 8 would rest against the stop 23 and prevent further rotation forward.
  • the angle ⁇ represent the largest angle the headrest 2 can get in relation to the back support 3 .
  • FIG. 5 the headrest 2 is in the position the headrest 2 will take if the user do not provide pressure towards the headrest 2 , but only provides pressure towards the back support 3 .
  • the headrest 2 will then have a maximum displacement forward and the support surface 21 in the rotational joint 7 , 8 would rest against the stop 23 and prevent further rotation forward.
  • the angle ⁇ represent the largest angle
  • the headrest 2 is pushed as far backwards as possible until the support surface 22 in the rotational joint 7 , 8 comes in contact with the stop 23 and prevents further rotation backwards.
  • the angle ⁇ represents the smallest angle the headrest can get in relation to the back support 3 .

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)
US12/682,752 2007-10-10 2008-10-09 Device for a reclining chair Active 2028-12-18 US8172315B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NO20075182 2007-10-10
NO2007-5182 2007-10-10
NO20075182A NO328012B1 (no) 2007-10-10 2007-10-10 Anordning til sittemobel
PCT/NO2008/000358 WO2009061204A1 (fr) 2007-10-10 2008-10-09 Dispositif de siège

Publications (2)

Publication Number Publication Date
US20100213743A1 US20100213743A1 (en) 2010-08-26
US8172315B2 true US8172315B2 (en) 2012-05-08

Family

ID=40625960

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/682,752 Active 2028-12-18 US8172315B2 (en) 2007-10-10 2008-10-09 Device for a reclining chair

Country Status (5)

Country Link
US (1) US8172315B2 (fr)
AU (1) AU2008325366B2 (fr)
GB (1) GB2465944B (fr)
NO (1) NO328012B1 (fr)
WO (1) WO2009061204A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10842281B2 (en) 2012-09-20 2020-11-24 Steelcase Inc. Control assembly for chair
US11229294B2 (en) 2012-09-20 2022-01-25 Steelcase Inc. Chair assembly with upholstery covering
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO328012B1 (no) 2007-10-10 2009-11-09 Mobeldesign As Anordning til sittemobel
DE102009050903B4 (de) * 2009-10-27 2014-02-13 Siemens Aktiengesellschaft Fahrzeugsitz
WO2014120015A1 (fr) * 2013-02-01 2014-08-07 Slyngstad Jarle Meuble d'assise présentant un angle réglable entre le siège et le dossier
NO342753B1 (en) * 2016-11-02 2018-08-06 Img Group As Motorized adjustable back support for recliner
NO342754B1 (en) * 2016-11-17 2018-08-06 Img Group As System for motorized adjustment of headrest
US10588416B2 (en) * 2018-06-28 2020-03-17 Sue Vanmaastricht Adjustable chair
NO346566B1 (no) * 2020-04-28 2022-10-10 H2 Norway As Sitteanordning med tilbakelent funksjon
CN111616541A (zh) * 2020-06-30 2020-09-04 恒林家居股份有限公司 一种椅架

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040661A (en) * 1974-11-04 1977-08-09 Uop Inc. Vehicle seat with headrest movement responsive to seat back tilting
US4830429A (en) * 1987-01-23 1989-05-16 Michel Petitjean Device for operating a multiple position armchair, seat or couch, including a means for supporting the small of the back
WO1992006621A1 (fr) 1990-10-12 1992-04-30 J.E. Ekornes A/S Systeme de fauteuil inclinable
NO310958B1 (no) 1999-04-26 2001-09-24 Hove Moebler As Reguleringsanordning for en nakkestotte i hvilestoler
NO313783B1 (no) 2001-07-05 2002-12-02 Ekornes Asa To-trinns trekkelement
US6517156B1 (en) 2002-02-04 2003-02-11 Chang-Chen Lin Backrest structure for a leisure chair
NO314563B1 (no) 1999-12-23 2003-04-14 Hove Moebler As Nakkestötte for hvilestol
US6923503B2 (en) * 2002-10-16 2005-08-02 Icf S.P.A. Chair with movable seat and backrest
US7422287B2 (en) * 2005-03-08 2008-09-09 Steelcase Inc. Seating with shape-changing back support frame
NO328012B1 (no) 2007-10-10 2009-11-09 Mobeldesign As Anordning til sittemobel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO310959B1 (no) * 1999-05-28 2001-09-24 Hove Moebler As Nakkestotte for en hvilestol

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040661A (en) * 1974-11-04 1977-08-09 Uop Inc. Vehicle seat with headrest movement responsive to seat back tilting
US4830429A (en) * 1987-01-23 1989-05-16 Michel Petitjean Device for operating a multiple position armchair, seat or couch, including a means for supporting the small of the back
WO1992006621A1 (fr) 1990-10-12 1992-04-30 J.E. Ekornes A/S Systeme de fauteuil inclinable
US5472261A (en) 1990-10-12 1995-12-05 Ekornes Fabrikker As J E Arrangement in a recline chair
NO310958B1 (no) 1999-04-26 2001-09-24 Hove Moebler As Reguleringsanordning for en nakkestotte i hvilestoler
NO314563B1 (no) 1999-12-23 2003-04-14 Hove Moebler As Nakkestötte for hvilestol
NO313783B1 (no) 2001-07-05 2002-12-02 Ekornes Asa To-trinns trekkelement
US6517156B1 (en) 2002-02-04 2003-02-11 Chang-Chen Lin Backrest structure for a leisure chair
US6923503B2 (en) * 2002-10-16 2005-08-02 Icf S.P.A. Chair with movable seat and backrest
US7422287B2 (en) * 2005-03-08 2008-09-09 Steelcase Inc. Seating with shape-changing back support frame
NO328012B1 (no) 2007-10-10 2009-11-09 Mobeldesign As Anordning til sittemobel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10842281B2 (en) 2012-09-20 2020-11-24 Steelcase Inc. Control assembly for chair
US11229294B2 (en) 2012-09-20 2022-01-25 Steelcase Inc. Chair assembly with upholstery covering
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering
US11464341B2 (en) 2012-09-20 2022-10-11 Steelcase Inc. Chair assembly with upholstery covering

Also Published As

Publication number Publication date
GB2465944A (en) 2010-06-09
WO2009061204A1 (fr) 2009-05-14
AU2008325366A1 (en) 2009-05-14
GB2465944B (en) 2012-10-03
NO328012B1 (no) 2009-11-09
US20100213743A1 (en) 2010-08-26
AU2008325366B2 (en) 2014-10-30
GB201005978D0 (en) 2010-05-26
NO20075182L (no) 2009-04-14

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